Assignee
HEDSTROM
3 granted patents·137 citations·filing 1977–1978
Top patents by PatentIndex Score
3 records- 0188US4150820AMotorized swingHEDSTROM·Filed 1977·Granted Apr 24, 1979·69 cites·12 claims
- 0281US4211401ASwing having electrically rewound spring motor driveHEDSTROM·Filed 1978·Granted Jul 8, 1980·41 cites·23 claims
- 0366US4190283AFoldable play gymHEDSTROM·Filed 1978·Granted Feb 26, 1980·27 cites·12 claims
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